Personalized Mechanic Dad Like A Normal Dad Only Cooler T-Shirt. Gift this to the mechanic dad in your life for birthdays, Father's Day, or just because! It's a great way to celebrate his passion and show him how much he means to you. Get ready to make him smile with this cool and clever design! Wardrobe essential for looking good, 24/7. 5.0 oz., pre-shrunk 100% cotton. Seamless 1x1 rib collar. Shoulder-to-shoulder taping. Double-needle stitched sleeves, bottom hem and front neck. Note: greys are a cotton/polyester blend.